Extreme Cold Sleeping Bag -15°C | Down-Filled for Trekking & Winter Mountaineering

Extreme Cold Sleeping Bag – Sleep Warmly Even at -15°C

Transform your nights outdoors with our extreme cold sleeping bag, designed to offer optimal insulation even in the harshest conditions. Whether you're camping in the mountains or sleeping under the stars, this mummy-style sleeping bag guarantees warmth and comfort for unforgettable adventures.

Key Features of Our Sleeping Bag:

• Perfect Thermal Insulation: Stay warm even when temperatures drop to -15°C.
• Ergonomic Mummy Shape: Snug and enveloping design reduces heat loss whilst offering maximum comfort.
• Integrated Hood: Keeps your head warm and reduces heat loss by up to 30% for cosier nights.
• High-Quality Materials:
  • Outer Shell: 190T waterproof polyester taffeta for effective protection against moisture.
  • Lining: Soft and insulating polyester pongee, pleasant against the skin.

Why Choose Our Extreme Cold Sleeping Bag?

1. Perfect for Extreme Temperatures

Tested and approved in genuine mountain conditions, this sleeping bag is specifically engineered to withstand rigorous environments, providing enveloping warmth even at -15°C.

2. Comfort Adapted to Your Body

The mummy shape is ideal for maintaining optimal temperature. Wider at the shoulders and narrower at the feet, its design effectively conserves body heat whilst allowing sufficient freedom of movement.

3. Lightweight and Easy to Transport

Weighing just 1.85 kg, this sleeping bag is perfect for hikers and campers who want to travel light without sacrificing thermal protection.

4. Tough and Durable

The waterproof polyester taffeta protects against moisture, guaranteeing exceptional durability even with intensive use.

Specifications at a Glance:

• Temperature Rating: -15°C
• Weight: 1.85 kg
• Style: Mummy shape with integrated hood
• Outer Material: 190T polyester taffeta (waterproof)
• Inner Lining: Polyester pongee
• Colours Available: Black, Red

Frequently Asked Questions

Is this sleeping bag suitable for winter camping in the UK?

Absolutely. With a temperature rating of -15°C, this sleeping bag is designed for extreme cold conditions and will keep you warm during winter camping trips in the mountains, highlands or any cold-weather environment.

How do I pack and store the sleeping bag?

The sleeping bag comes with a compression bag for easy transport. After use, ensure it's completely dry before storing loosely in a breathable storage sack to maintain the insulation's loft and longevity.

Can I wash this sleeping bag?

Yes, but we recommend hand washing or using a large-capacity washing machine on a gentle cycle with mild detergent. Avoid fabric softeners and tumble dry on low heat or air dry completely before storing.

What's the difference between a mummy bag and a rectangular sleeping bag?

Mummy bags are tapered to follow your body's contours, which minimises air pockets and maximises heat retention. They're lighter and warmer than rectangular bags, making them ideal for cold-weather camping and trekking.

Is the sleeping bag waterproof?

The outer shell is made from water-resistant 190T polyester taffeta, which protects against moisture and light rain. However, for prolonged exposure to wet conditions, we recommend using a waterproof bivvy bag or tent.

What height range is this sleeping bag suitable for?

The mummy design accommodates most adults up to approximately 185 cm (6'1") comfortably. The tapered shape ensures efficient heat retention for a range of body sizes.

A Guarantee That Protects You 100%

With our 30-day satisfaction or money-back guarantee, you can try our sleeping bags without any risk. For any questions or return requests, simply email us at contact@boneroshop.com, and we'll take care of the rest promptly.

Ready for Your Next Adventure?

Don't let the cold hold you back. Our extreme cold sleeping bag gives you the confidence to explore further, camp higher and sleep soundly in the harshest winter conditions. Lightweight, durable and proven in real mountain environments, it's the reliable companion every serious outdoor enthusiast needs.